/**
 * Created by Administrator on 2017/9/22 0022.
 */
var express=require('express');
var router=express.Router();

var Category=require('../models/Category');
var Content=require('../models/Content');
var data;
/*
* 处理通用数据
* */
router.use(function (req,res,next) {
    data={
        userInfo:req.userInfo,
        categories:[]
    };
    Category.find().then(function(categories){
        data.categories=categories;
        next();
    })
});

router.get('/',function(req,res,next){
    data.category=req.query.category||'';
    data.count=0;
    data.page=Number(req.query.page||1);
    data.limit=3;
    data.pages=0;
    var where={};
    if(data.category){
        where.category=data.category
    }
   Content.where(where).count().then(function(count){
        data.count=count;

        //计算总页数
        data.pages=Math.ceil(data.count/data.limit);
        //取值不能超过pages
        data.page=Math.min(data.page,data.pages);
        //取值不能超过1
        data.page=Math.max(data.page,1);
        var skip=(data.page-1)*data.limit;

        return  Content.where(where).find().limit(data.limit).skip(skip).populate(['category','user']).sort({
            addTime:-1
        });
    }).then(function(contents){
        data.contents=contents;
        res.render('main/index',data);
    });
});
/*
* 阅读全文路由
* */
router.get('/view',function(req,res){
   var contentId=req.query.contentid||'';

    Content.findOne({
        _id:contentId
    }).then(function (content) {
       data.content=content;
        //阅读数
        content.views++;
        content.save();
       res.render('main/view',data);
    });
});
module.exports=router;